﻿/*
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CreatedTime:2011-10-28
Description:三层架构业务逻辑层子类
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*/
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
using Models;//引入模型层

namespace DAL
{
	public class Tb_CategoryService:Tb_CategoryServiceBase
    {
	  	private static Tb_CategoryService _instance;
        public static Tb_CategoryService Instance
        {
            get
            {
                if (_instance == null)
                   	 _instance = new Tb_CategoryService();
                return _instance;
            }
        }
	}
}
